fix(behaviors): Fix timing of delayed hold-tap trigger

A hold-tap timer event would be triggered too soon if the hold-tap
was delayed for longer than its tapping-term. This may cause
accidental hold behavior when the correct behavior would be tap.

By queuing the timer event instead of executing it immediately,
other delayed events get a chance to be processed properly.

app/tests/hold-tap/tap-preferred/6-nested-timeouts/events.patterns

@@ -0,0 +1,4 @@
+s/.*hid_listener_keycode/kp/p
+s/.*mo_keymap_binding/mo/p
+s/.*on_hold_tap_binding/ht_binding/p
+s/.*decide_hold_tap/ht_decide/p